In order of importance it's:
1. Dad's birthday
2. the first day of spring
3. World Poetry Day
and the three are all tied up so closely together it's appropriate they share the same special day:
In honour of all three, a few lines from Robert Herrick -
'Fair daffodils, we weep to see
You haste away so soon;
As yet the early-rising sun
Has not attain'd his noon.
Stay, stay
Until the hasting day
Has run
But to the evensong;
And, having pray'd together, we
Will go with you along.
We have short time to stay, as you,
We have as short a spring;
As quick a growth to meet decay,
As you, or anything.
We die
As your hours do, and dry
Away
Like to the summer's rain;
Or as the pearls of morning's dew,
Ne'er to be found again.
and William Wordsworth -
I wandered lonely as a cloud
That floats on high o'er vales and hills,
When all at once I saw a crowd,
A host, of golden daffodils;
Beside the lake, beneath the trees,
Fluttering and dancing in the breeze.
Continuous as the stars that shine
And twinkle on the milky way,
They stretched in never-ending line
Along the margin of a bay:
Ten thousand saw I at a glance,
Tossing their heads in sprightly dance.
The waves beside them danced; but they
Out-did the sparkling waves in glee:
A poet could not but be gay,
In such a jocund company:
I gazed—and gazed—but little thought
What wealth the show to me had brought:
For oft, when on my couch I lie
In vacant or in pensive mood,
They flash upon that inward eye
Which is the bliss of solitude;
And then my heart with pleasure fills,
And dances with the daffodils.